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http://hdl.handle.net/10603/436265
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DC Field | Value | Language |
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dc.coverage.spatial | ||
dc.date.accessioned | 2023-01-04T10:08:10Z | - |
dc.date.available | 2023-01-04T10:08:10Z | - |
dc.identifier.uri | http://hdl.handle.net/10603/436265 | - |
dc.description.abstract | A fiber optic sensing system is suitable for detecting surrounding environmental newlineparameters like temperature, strain, vibration, intrusion, acoustic effects, etc. The fiber optic newlinesensing system that allows continuous, real-time measurements along the entire length of an newlineoptical fiber is known as a distributed fiber optic sensing (DFOS) system. Most of the DFOS newlinesystems designs are based on the principle of optical time-domain reflectometry (OTDR) and use newlinethe backscattering effects like Rayleigh, Brillouin, and Raman scattering effects. Sensing range, newlinesensing resolution, spatial resolution, and power consumption are the major performance metrics newlineof a given DFOS system. In this thesis, the dynamic range improvement of OTDR using the newlinedifferent signal processing techniques is reported. The respective results are experimentally newlineevaluated. newlineThe performances of fiber-based distributed sensing systems are investigated using newlinedifferent signal processing techniques namely using translation invariant wavelet thresholding newline(TIWT), lifting wavelet transform-modified particle swarm optimization (LWT-MPSO), LWToptimum newlinemodified differential threshold (LWT-OMDT), and empirical mode decomposition newline(EMD) techniques. In this thesis, distributed temperature sensing (DTS) systems namely newlineBrillouin OTDR-DTS, Brillouin OCDR-DTS, and distributed strain sensing (DSS) systems newlinenamely Brillouin OTDR-DSS, Brillouin OCDR-DSS, and Rayleigh OTDR-DSS are investigated newlinefor their performance improvement using the adopted signal processing techniques. newlineThe higher degree of sensing resolution with a higher degree of sensing range is obtained newlinein the Brillouin OTDR-DTS system using EMD, and LWT-OMDT techniques. As compared to newlinethe EMD technique, the LWT-OMDT technique offered better performance. The higher degree newlineof temperature resolution along with a sub-meter spatial resolution is obtained in the Brillouin newlineOCDR-DTS system using the PSO technique. | |
dc.format.extent | ||
dc.language | English | |
dc.relation | ||
dc.rights | university | |
dc.title | Design and Development of Fiber Optic Sensor for Remote Monitoring | |
dc.title.alternative | ||
dc.creator.researcher | Ramji, Tangudu | |
dc.subject.keyword | Engineering | |
dc.subject.keyword | Engineering and Technology | |
dc.subject.keyword | Engineering Electrical and Electronic | |
dc.description.note | ||
dc.contributor.guide | Sahu, Prasant Kumar | |
dc.publisher.place | Khordha | |
dc.publisher.university | Indian Institute of Technology Bhubaneswar | |
dc.publisher.institution | School of Electrical Sciences | |
dc.date.registered | 2017 | |
dc.date.completed | 2022 | |
dc.date.awarded | 2022 | |
dc.format.dimensions | ||
dc.format.accompanyingmaterial | DVD | |
dc.source.university | University | |
dc.type.degree | Ph.D. | |
Appears in Departments: | School of Electrical Sciences |
Files in This Item:
File | Description | Size | Format | |
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01_title.pdf | Attached File | 21.31 kB | Adobe PDF | View/Open |
04_abstract.pdf | 136.08 kB | Adobe PDF | View/Open | |
80_recommendation.pdf | 343.52 kB | Adobe PDF | View/Open |
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